3. ...got something a bit queer in his makeup... What is the queer eleme 'Bilbo?
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The floor of a hall is covered with identical tiles which are in the shapes of triangles. One such triangle has the vertices at (7, -3) , (5, 3) and (3, -1) . If the floor of the hall is completely covered by 50 tiles, find the area of the floor.
a) 500 sq.units
b) 480 sq.units
c) 520 sq.units
d) 512 sq.units
e) 514 sq.units
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